Improved fire-extinguisher



dimitri tatw JOHN F. BOYNTON, OF SYAOUSE, NEW YORK.

Lette/rs Patent No. 96,876, dated November 16, 1869.

IMPROVED FIRE-EXTINGUISHER.

vThe Schedule referred to in these Letters Patent and making part of thesame.

I, JOHN F. BOYNTON, of Syracuse, in the county of Onondaga, and State ofNew York, have invented certain lmprovemeutsin Fire-Extinguishers, ofwhich the following` is a specification.

My invention relates vto that class of machines in which astri-am of'water, or water holding salts in solution, and highly -clntrged withcarbonio-acid gas, is injectedupoii thej'fre'by the pressure 'of suchgas,` generatedwithin such machine by the decomposition of suitablechemicals.

In the drawings- Figure l represents a sectional view of' my apparatus,and

Figure 2, an elevation of the same.

My apparatus consists of a closed vessel, A, provided Wth au opening inthe top for the admission of water, ehemicals,'&c., and a tube, d, andstop-cock at the bottoni, through which the conte'ut'so'f the vessel maybe discharged.

'lo the outside of the vessel A, near the top, is attached agenerating-vessel, b, which communicates with the said -vessel A bymeans of' tubes, 'zc x', which may be provided with stop-cocks, if'desired.

This generating-chamber consists of a small vessel, of metal-or othersuit-able material, and contains a capsule, `ofglass or other ma terial,which may be broken or pierced within it, by means of pressure from theScrew-rod c. In case a metal capsule is used, I make a small projectionon the bottom of the generating" chamber, to pierce through the metal\vlieu press\1re is brought to bear upon the capsule by the screw- -Tocharge the apparatus, the vessel A is filled with a solution of sonicsuitable carbonate, said solution entering the generating-chainber athrough pipes xx. The capsule b is filled with acid and placed in thegenmating-chamber w, after which the top is secured, and the apparatusis ready for use. On turning the screwrod c, its lower end is caused topress against, and break or pierce the capsule b, liberating the acid,which, xnixing\ with the carbonate-solution, decomposes it, and createstheirequired pressure in the generator and vessel A. Thesulphuric acidwith which the capsule is` generally filled, being much heavier than thecarbonate-solution, readily flows from the generator into the'vessel A,containing the carbonatesolution, through'the connecting-tube cv, whilethe water flows from the vessel A into-the generatingchamber through thetube x', thus producing a speedyand thorough mixture of the acid withthe'ca'rbonated water.`

I claim, as my in'vention- The combination of' the vessel 'A with thegenerator e and capsule b, substantially as herein described.

JOHN F. BOYNTON..

Witnesses:

H. WILBER HUBBABD, O. 'B. KING.

